Rail joint chair



Feb. 28, 1933. A. M DERMOTT RAIL JOINT CHAIR Filed May 19, 1952 INVENTOR zwf/ilfiermatt BY M6 Q S S E N H W ATTORNEY members.

N vide a rail joint and 17 so as to Q diately below the UNITE -T TATE 'S PATENT OFFICE AUGUST mcnnnnrorr, OF oABo'r, PENNSYLVANIA RAIL JOINT 91m n Application filed May .19,

My invention relates to improvements .in rail olnt chairs and it consists in. the constructions, arrangements and combinations herein described and claimed.

It is an object of my inventionto provide a rail joint chair which will receive the ends of abutting rails and which includes a wedge which provides a binding action between the webs of the railsythe underside of the heads 9 and the flanges thereof to connect and retain the rails in abutting relation, without the use of bolts, spikes or similar fastening means.

It is also an object of my invention to pro chair of a constructionsuch as to permit the necessary longitudinalexpansi on and contraction between the securing wedge and rail members and yet maintain the rails in proper secure relationship with one another and the chair.

It is a still further object of my invention provide a rail chair which will readily accommodate a bond wire, such as are employed to Additional objects, advantages and features of invention will be apparent from the following description considered in conjunction with the accompanying drawing, wherein:

Figure 1 is a perspective View of my rail chair applied to abutting rail sections;

Fig. 2 is a top plan view thereof; and

Fig. 3 is a cross section on the line 33 a of Fig. 2.

Referring to the drawing, the numeral 10 designates my rail joint chair, which in the present instance comprises a base 11 upon which the flanges 12 of the rails 1313 rest. The base 11 is of considerably great-er width J than the flanges of the rails and is provided at the termination of the flanges with integrally formed shoulders 14 and 15. The shoulders 14c and 15 are undercut as at 16 snugly engage the inclined upper surface of the rail flanges. The shoulder 14: extends the full length of the chair and is of a height to extend from the upper surface of the rail flange toa point immeunderface 18 of the rails 13 18. The inner face 190i the shoulder effect disconnection of the bond electrically connect abutting rail I 1932. Serial. to. 612,328.

to provide alongitudinally ex+ 20, for accommodation of a j d wire and fastening means presently to be described. The inner face 19 of the shoulerrestssnugly against the web of the rails, and the exterior wall 22 may have any suitablecontour which, in the presentinstance, i'sillustrated as inclined for a short distanceand terminating in a vertical portion at the j uncture with the-base 11.

understood, abutting rail ends with bond wires whereby the 14 is cut away tending recess shown in the bond wire 23 isconnected to the abuttingirails recesses 20 being so located as to accommodate the'wire 23 therewithin. Thus, the bond wire is housed against the weather, as well as protected against tampering by unscru- 9 pulous persons or other causes which might Wire. The shoulder 15 also extendsthe full length of the rail chair and the undercut portion 17 lies flush with the upper surface of the adjacent rail flange 12, but thej'shoulder 15 stops short of the web members .21,"of the rails. The face '24 of the shoulder is inclined downwardly and inwardly from its upper edge and is also beveled from one end to the other end to accommodate a tapered wedge 25, now to be described.

The wedge'is taperedas shown and is ofa length equalling the length of the chair and as a lower angular base 26 to conform to the upper surface of the rail flange 12, which it abuts,and also embodies a vertical straight edge 27 which engages the webs 21. Then per edge 28 is preferably straight and stops shortv slightly below the heads of the 'rai'ls 9 pin is ofa 21into the l as indicated at 23, the V end 35' of the wedge is inserted I recess'20, and is apertured to receive a cotter pin 38. V

The application of my chair to a rail will be readily'understood from the following description thereof. 7 Before the rails 13-13 are brought into abutting relation, the chair 10 is slid 'endwise upon one of the rail members so that the flanges 12 will rest upon the base 11. The rails 1313' are now brought into alinement, the bond wire 23 connected, and Y the chair 1() is; movec longitudinally thereon until the meeting edges of the rails, are approximately midway of the chair. The chair 10 is then secured to the usual ties (not shown) by spikes,asordinarily practiced, the chair being. provided with recesses 34:, accommodating the heads of the spikes. "With the parts positioned as described, the small ,in the large end defined by the tapered face '24 and driven "firmly between the face 9A, and the web 21, until the bore 30 of the wedge registers with the bore 31 of the web 21. The dowel pin '32 is next inserted through the alined bores and finally, the cotter pin 33 is inserted-in an aperture formed in the pin to secure it against withdrawal.

It should be noted that the dowel pin 82 secures the wedge 25to the rail 13 only, thereby permitting ready expansion and contraction between the rails 13-13, without reducing the efficient binding actions between the wedge 25 and the rail 13'.

I claim:

ing into said recess,

of the web of said rails and having a tapered formation throughout its length, a tapered wedge disposed between said last name shoulder and the web members of said rails, one of said web members having an aperture, said wedge having an aperture for reg1stry with said first named aperture, disposed within said apertures and pro ectand said dowel pin havan aperture in that portion dispose ing for reception of a cotter within the recess in. p 3. In a bonded rail joint, a joint chair comprising a base having a seat upon which two rails are adapted to rest, said base beingprovided with upwardly extending side shoulders, said shoulders having undercut portions to receive the base flanges of said rails, one of said shoulders abutting the web of said rails and further having a recess extending longitudinally throughout the length thereof to accommodate the bond of saidrails, wedge means, cooperable vwith said other shoulder and the web members of said rails, said wedge having an aperture adjacent one end 'thereof,one of said'web members having an aperture for registrywith said first named aperture, a pin disposed within said apertures and projecting into saidrecess,and said pin having an aperture in that portion disposed within the recess for reception of-fastening means.

AUGUST MODERMOTT..

v 1. In a ra1l joint, a joint chair comprising j a base having a central seat upon which two rails are adapted to rest, said base being pro- 7 videdwith upwardly extending side shoulders,

said shoulders being constructed to receive the basefianges of'said rails, one of said shoulders having a face abutting the web of said rails and further said other shoulder stopping short of the web of said rails and having a tapered formation throughout its length, a tapered wedge disposed between said last named shoulder and the web members of said rails, one of said web members having an aperture, said wedge having an aperture namedaperture, a dowel pin disposed within said apertures and projecting into said recess, and said disposed within the recess for reception of a cotter pin.

" 2. In a bonded rail joint,

prising a base having a seat upon which two having a longitudinal recess,

for registry with said first V V dowel pin having an aperture in that portion a joint chair comrails are adapted to rest, said base being prov throughout the p length thereof to accommodate the bond of i" said rails, said othershoulder stopping short further having a recess a dowel pin 

